Use only distilled or bottled water. Just add 1/2 a capful of "Pluck No More" to 4 oz of drinking water each day for birds such as African Greys, Amazons, Cockatoos, Eclectus and all size Macaws. For birds such as Cockatiels, Conures, Lovebirds, Quakers, Canaries and Parakeets use 1/4 capful each day. For faster results, add 2 capfuls in a spray bottle and lightly spray the affected areas 3-4 times a day.